22431321103 has 2 divisors, whose sum is σ = 22431321104. Its totient is φ = 22431321102.

The previous prime is 22431321089. The next prime is 22431321137. The reversal of 22431321103 is 30112313422.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22431321103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22431321163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11215660551 + 11215660552.

It is an arithmetic number, because the mean of its divisors is an integer number (11215660552).

Almost surely, 2^22431321103 is an apocalyptic number.

22431321103 is a deficient number, since it is larger than the sum of its proper divisors (1).

22431321103 is an equidigital number, since it uses as much as digits as its factorization.

22431321103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 22431321103 its reverse (30112313422), we get a palindrome (52543634525).

The spelling of 22431321103 in words is "twenty-two billion, four hundred thirty-one million, three hundred twenty-one thousand, one hundred three".